Quince.... is it a MUST to repot in early winter?

[Mike Corazzi]

Articles seem contradictory. Some say spring, more say start of winter.
What does Bonsai Nut say?

I have one and only one. It must be potbound as it's in a very small pot.

 

[Dav4]

I've had equal luck killing chojubai quince both after spring and fall repots so...

In your climate (hot summers/mild short winters?), assuming we're discussing Japanese quince, you'd probably be good doing it any time from early fall into mid/late winter.

 

[Deep Sea Diver]

It’s can be all about nematodes in spring time. Yet..

cheers
DSD sends

 

[River's Edge]

Articles seem contradictory. Some say spring, more say start of winter.
What does Bonsai Nut say?

I have one and only one. It must be potbound as it's in a very small pot.

I consider Michael Hagedorn to be the go to guy for Quince. He explains that the Japanese usually repot in the fall to avoid infection from nematodes.
( so this practice may be appropriate for one if the climate and conditions are similar with high risk of nematode infection)
His practice is to repot in the spring. He also advise less aggressive root work particularly for older plants. One tip that he mentions for extra care is to use the wedge replacement process as one would for satsuma azalea. They have similar root structure.
I have always repotted in the spring with no difficulty using Michaels approach after working with him and observing his techniques.
I am working with Dwarf Chojubai and the Toyo Nishiki Improved Quince.
When talking with others that have had difficulty it seemed to be caused by aggressive root work, using too shallow of containers and lack of winter protection if repotting in the fall particularly. Just notes from my experience.

 

[scottschecter]

I consider Michael Hagedorn to be the go to guy for Quince. He explains that the Japanese usually repot in the fall to avoid infection from nematodes.
( so this practice may be appropriate for one if the climate and conditions are similar with high risk of nematode infection)
His practice is to repot in the spring. He also advise less aggressive root work particularly for older plants. One tip that he mentions for extra care is to use the wedge replacement process as one would for satsuma azalea. They have similar root structure.
I have always repotted in the spring with no difficulty using Michaels approach after working with him and observing his techniques.
I am working with Dwarf Chojubai and the Toyo Nishiki Improved Quince.
When talking with others that have had difficulty it seemed to be caused by aggressive root work, using too shallow of containers and lack of winter protection if repotting in the fall particularly. Just notes from my experience.

Michael has also been doing some Chojubai repotting in summer lately.

 

[River's Edge]

Michael has also been doing some Chojubai repotting in summer lately.

Its great to have options, post flowering is often a good time for certain species! His blog archives have a great amount of resource material on Quince and many other topics. His writing really conveys a passion and a high level of information at the same time. Really enjoy his creative design and styling of Bonsai.

 

[Maiden69]

Michael and Jonas have been doing spring/summer/fall repots. Jonas did an experiment with young chojubai in a summer repot, where he defoliated them at the same time vs a no defoliation group. The defoliated group perked up quicker, as the other group tend to yellow and replace some leaves.

Summer repotting dwarf flowering quince - Bonsai Tonight

Chojubai, a variety of dwarf flowering quince, is one of the few bonsai I can repot in summer. Repotting chojubai in early spring also works, but by repotting

bonsaitonight.com

Repotting young chojubai in summer - Bonsai Tonight

To defoliate or not to defoliate - repotting chojubai recovering from damage caused by a heat wave and comparing the results.

bonsaitonight.com

Repotting chojubai in fall - Bonsai Tonight

Fall is a great time for repotting chojubai bonsai and removing any fruit, flowers and flower buds on trees in development.

bonsaitonight.com

I plan on repotting a few quinces I have soon, maybe I'll do 1/2 in the summer and the other 1/2 on fall and see which one works best for me. I repotted some chojubai in spring and they are doing fine so far. Not much root growth as I can see some movement with the wind ( I ended up relocating them between larger pots).

 

[River's Edge]

Michael and Jonas have been doing spring/summer/fall repots. Jonas did an experiment with young chojubai in a summer repot, where he defoliated them at the same time vs a no defoliation group. The defoliated group perked up quicker, as the other group tend to yellow and replace some leaves.

Summer repotting dwarf flowering quince - Bonsai Tonight

Chojubai, a variety of dwarf flowering quince, is one of the few bonsai I can repot in summer. Repotting chojubai in early spring also works, but by repotting

bonsaitonight.com

Repotting young chojubai in summer - Bonsai Tonight

To defoliate or not to defoliate - repotting chojubai recovering from damage caused by a heat wave and comparing the results.

bonsaitonight.com

Repotting chojubai in fall - Bonsai Tonight

Fall is a great time for repotting chojubai bonsai and removing any fruit, flowers and flower buds on trees in development.

bonsaitonight.com

I plan on repotting a few quinces I have soon, maybe I'll do 1/2 in the summer and the other 1/2 on fall and see which one works best for me. I repotted some chojubai in spring and they are doing fine so far. Not much root growth as I can see some movement with the wind ( I ended up relocating them between larger pots).

I repotted 14 quince this spring and they re all doing fine, did not skip a beat!

 

[Clicio]

Here in the tropics, I repot in the fall, but... Winters here are mild.

 

[shinmai]

Nematode? Everyone knows it’s the Under Toad you have to watch out for.